<p>I saw that info about Carnegie Mellon’s efforts, though I think that many schools don’t admit separately for CS majors, so I don’t think girls not meeting entry requirements would be a reason for the difference. All the programs would have introductory classes. </p>
<p>As far as early exposure to stereotypes go, I think that is a factor, but it doesn’t seem to be deterring women from getting degrees in chemistry or geology.</p>